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  • Title: Kolokosides A-D: triterpenoid glycosides from a Hawaiian isolate of Xylaria sp.
    Author: Deyrup ST, Gloer JB, O'Donnell K, Wicklow DT.
    Journal: J Nat Prod; 2007 Mar; 70(3):378-82. PubMed ID: 17284074.
    Abstract:
    Four new triterpenoid glycosides, kolokosides A-D (1-4), along with the known compound 19,20-epoxycytochalasin N, were isolated from cultures of a Hawaiian wood-decay fungus (Xylaria sp.). The structures and relative configurations of 1-4 were determined primarily by analysis of NMR data, and the absolute configuration of 1 was assigned by application of the exciton chirality method. Compound 1 exhibited activity against Gram-positive bacteria.
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